.jumpBox {
    width: 100%;
    background: #020a35;
    height: 500px;
    border: 1px solid #ccc;
    position: relative;
    .bg{
        width: 418px;
        height: 207px;
        background: url('../../images/arthbg1.png') center top no-repeat;
        margin: 50px auto;
        position: relative;
        z-index: 999;
    }
    .shade {
        width: 40px;
        height: 20px;
        background: #020a35;
        position: absolute;
        z-index: 99;
        left: 0;
        top: 0;
    }
    .beginPoint{
        width: 2px;
        height: 2px;
        background: transparent;
        position: absolute;
        top: 0;
        left: 50%;
        margin-left: -1px;
    }
    .endPoint{
        width: 2px;
        height: 2px;
        background: transparent;
        position: absolute;
        left: 50%;
        bottom: 0;
        margin-left: -1px;
    }
}
